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QA1 metric jam nut is a compact steel locking nut for M8‑1.25 left‑hand threads, with a 13mm hex and 4mm thickness. It gives a low‑profile secondary locking point to secure threaded assemblies where a thin nut is required. QA1 offers these jam nuts in steel or aluminum and provides standard and metric options; aluminum versions may be clear‑anodized for corrosion resistance.
QA1 Metric Jam Nut - M8-1.25 Left Hand - 13mm Hex 4mm Wide - Steel
